K-array Kobra KK52 User manual

KK52-KK102 Ver. 2.1
KK52 /KK52 Mark I
KK102 /KK102 Mark I
USER GUIDE
English
WHAT’S NEW IN THE MARK I VERSION?
New paint work for black and white models, no screen printing
of names and logos.
Kobra

KK52-KK102 Ver. 2.1
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TABLE of CoNTENTS
SYMBoLS ................................................................................ 3
1. INTRoDUCTIoN ..................................................................... 4
2. KEY fEATURES ...................................................................... 4
3. APPLICATIoNS....................................................................... 4
4. SAfETY INfoRMATIoN............................................................ 5
5. UNPACKING ......................................................................... 6
6. PhYSICAL ............................................................................. 6
6.1 KK52 L AYoUT .................................................................................... 6
6.2 KK102 LAYoUT .................................................................................. 7
7. wIRING ................................................................................ 8
7.1 IMPEDANCE SwITCh ............................................................................ 8
7.2 CoVERAGE SwITCh ............................................................................. 9
8. ACCESSoRIES AND CoNfIGURATIoNS .......................................10
8.1 SUSPENDING fRoM ThE fLY-BAR ...........................................................10
8.2 hANGING oN ThE wALL ..................................................................... 11
8.3 STANDING oN ThE BASE ..................................................................... 11
8.4 hoRIZoNTAL CLUSTER ........................................................................ 12
8.5 GRoUND LAYING ............................................................................... 12
8.6 STANDING oN A KMT SUBwoofER......................................................... 13
9. SERVICE ............................................................................. 14
10. TEChNICAL SPECIfICATIoNS .................................................. 15

KK52-KK102 Ver. 2.1
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SYMBoLS
This symbol alerts the user to the presence of recommendations about
product’s use and maintenance.
This symbol alerts the user to the presence of recommendations about the
product’s use and maintenance.
K-array declares that this device is in compliance with applicable CE
standards and regulations. Before putting the device into operation, please
observe the respective country-specific regulations!
Waste Electrical and Electronic Equipment (WEEE)
Please dispose of this product at the end of its operational lifetime by bringing
it to your local collection point or recycling center for such equipment.
This device complies with the Restriction of Hazardous Substances Directive.
Warning: DANGEROUS VOLTAGE.
Terminals marked with this symbol carry a risk of electric shock, therefore
external wiring connected to these terminals requires installation by a
qualified professional or the use of ready-made leads or cords.

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1. INTRoDUCTIoN
2. KEY fEATURES
3. APPLICATIoNS
The K-array Kobras are passive speaker systems, comprised of 2” neodymium magnet transducers
housed in an elegant and sturdy stainless steel chassis. Available in two lengths, the KK52 features 8
drivers in a 0.5 m (19.7”), while the KK102 features 16 drivers in a 1 m (39.4”) chassis.
The Kobra’s closely spaced cone drivers provide phase coherence, low distortion and focused listening
both up close and at a distance.
To accommodate a range of applications, the vertical dispersion pattern can be switched for either wide
or narrow coverage.
Optional rigging and linking accessories allow multiple speakers to be interconnected, creating a wide
array of vertical and horizontal configurations for temporary or permanent installation.
For integration with other speakers or amplifiers, the KK52 and KK102 offer selectable impedance
(16Ω/64Ωfor the KK52 and 8Ω/32Ωfor the KK102).
Kobras are able to reproduce the entire vocal frequency range with excellent intelligibility, starting from
150 Hz.
Integrating powered K-array subwoofers (KMT12, KMT18, KMT21) ensures excellent coverage of the
entire musical frequency range. K-array’s KA amplifier series also features custom presets, optimized for
use with the Kobra series.
All Kobra components are designed by K-array and custom-made under K-array’s quality control system.
• Unique performance-to-size ratio
• Vertical, Horizontal and 3D line-array applications
• Multiple 2” long-excursion full-range cone drivers
• Wide horizontal coverage
• Selectable vertical pattern (Spot/Flood)
• Electronically protected
• Selectable impedance (KK52: 16/64 Ω, KK102: 8/32 Ω)
• Weather proof, suitable for outdoor installations - IP54
• Available in black or white
• Theatre, club, house of worship
• Front fill and under-balcony fill
• Portable and installed AV systems
• Stage and AV studio monitoring

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4. SAfETY INfoRMATIoN
Warning: failure to follow these safety instructions could result in injury
or damage to the device or other property.
IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep this instructions.
• Heed all warnings.
• Follow all instructions and keep all warnings.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer or
sold with the apparatus.
• When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
• Avoiding hearing damage. Professional loudspeakers are capable of producing extremely high sound
levels and should be used carefully. Never stand close to loudspeakers driven at high volume. Set
the volume to a safe level. You can adapt over time to a higher volume of sound that over time
may sound normal but can be damaging to your hearing. Hearing loss worsens after exposure to a
sound level of 90 dB or over for an extended period of time. If you experience ringing in your ears
or muffled speech, stop listening and have your hearing checked. The louder the volume, the less
time is required before your hearing could be affected.
• Choking Hazards. This device contains small parts, which may present a choking hazard to small
children. Keep the device and its accessories away from small children.
• Do not make repairs yourself. Never attempt to disassemble, repair or modify the system yourself.
Disassembling the unit may cause damage that is not covered under the warranty. The device contains
no user-serviceable parts. Repairs should only be performed by factory trained service personnel.
• Sound distortion. Do not operate speakers for an extended period of time with sound distortion. This
is an indication of malfunction, which in turn can generate heat and result in a fire.
• Carrying, handling and installing the device. The device contains sensitive components. Do not drop,
disassemble, open, crush, bend, deform, puncture, shred, incinerate, paint, or insert foreign objects
into it. If your device has been dropped or damaged unplug the power cable immediately.
• Set up. Set up your device on a stable retaining horizontal surface. If combined or mechanically
connected with other products, always verify the stability of the resulted system. Install the unit only
in a location that can structurally support the weight of the unit and far away from people who can
interfere with the stability of the system. Assure that the wind does not interfere with the system’s
stability, taking extra securities like chains, weights, ropes or any other certified anchoring systems.
Doing otherwise may result in the unit falling down, causing personal injury or property damage
or even death. The system should only be suspended by qualified personnel following safe rigging
practices. Secure fixings to the building structure are vital. To clarify any doubt you may have, seek
help from architects, structural engineers or other specialists.

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5. UNPACKING
Each K-array speaker is built to the highest standard and thoroughly inspected before leaving the
factory. Upon arrival, carefully inspect the shipping carton, then examine and test your new amplifier.
If you find any damage, immediately notify the shipping company. Only the consignee may institute a
claim procedure regarding the system’s electronic equipment.
6. PhYSICAL
Weight
2.3 kg (5.1 lbs)
2,3in
58,5mm
3,6in
91mm
3,2in
81mm
5,6in
142mm
8,4in
213mm
5,6in
142mm
19,6in
497mm
4,8in
121,8mm
0,8in
21mm
0,8in
21mm
6.1 KK52 LAYoUT

KK52-KK102 Ver. 2.1
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6.2 KK102 LAYoUT
3,6
90,7
5,6in
143,3mm
28,1
713,4
5,6
143,3
2,3in
58,5mm
39,4in
1000mm
1,1in
27,5mm
4,8in
121,8mm
1,1in
27,5mm
Weight
4.6 kg (10.1 lbs)

KK52-KK102 Ver. 2.1
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7. wIRING
KK52 and KK102 internal wiring is designed to pick up audio power signal from pins 1+ / 1- of a Speakon
NL4 connector. Pins 1+ and 1-, such as pins 2+ and 2-, are directly wired from one socket to the other,
so the two sockets are equivalent and can be used to connect the speaker to the amplifier or to connect
the speaker to another one driven in parallel by the same amplifier channel.
7.1 IMPEDANCE SwITCh
KK52 and KK102 features a switch which allows users to select the impedance of the speaker (KK52:
16/64 Ω, KK102: 8/32 Ω).
The value to be selected depends mainly on the amplifier you use to drive the unit. Impedance must
be set to high (64 Ωfor KK52 and 32 Ωfor KK102) when speakers are driven by KMT active modules
or by the KA84 amplifier. Low impedance may be used when speakers are driven by a KA24 amplifier.
Please refer to your amplifier’s specifications to select the correct speaker impedance for your
configuration.
IMPEDANCE SWITCH COVERAGE SWITCH
KA24 amp KA84 amp KMT sub
KK52 @ 16 ΩYES NO NO
KK52 @ 64 ΩNO YES YES
KK102 @ 8 ΩYES NO NO
KK102 @ 32 ΩNO YES YES

KK52-KK102 Ver. 2.1
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KK52 and KK102 features a switch which allows users to select the vertical coverage of the speaker.
Flood coverage sets a wide vertical diffusion. Flood coverage is suggested for single speakers in diffused
short throw applications to obtain maximum diffusion with a minimum footprint.
Spot coverage sets a narrower vertical diffusion angle and is recommended for long throw or monitoring
application.
When more units are combined in a line array configuration, make sure to set the coverage to Spot.
SPOT Coverage
FLOOD Coverage
7.2 CoVERAGE SwITCh

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8. ACCESSoRIES AND CoNfIGURATIoNS
K-array offers a variety of dedicated accessories to mount and interconnect the speakers for a wide
range of applications.
In this section we introduce you to the main accessories available for this product.
8.1 SUSPENDING fRoM ThE fLY-BAR
KK52 and KK102 units can be suspended using the K-FLY2 fly bar accessory and the K-JOINT2 hardware
accessory used to connect together two units or to connect a unit to the fly bar. Mixed configuration
with both KK52s and KK102 in the same cluster are also possible.
Consult the dedicated product manuals for safety information
and operation details.

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8.2 hANGING oN ThE wALL
The K-WALL2 and K-WALL2L accessories are used to mount a speaker on a wall.
8.3 STANDING oN ThE BASE
The K-BASE2 accessory assists in standing up to 2 meters of KK52/KK102. For proper installation and
operation, connect the units to the base with K-FOOT2 and K-JOINT2 accessories. Where possible,
screw the feet of the K-BASE2 to the ground.

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8.4 hoRIZoNTAL CLUSTER
The KK-CLUSTER2 accessory is used to mount on a horizontal cluster of three KK52/KK102 speakers
on the wall.
KK-CLUSTER2 comes in a set of three different models: one with no angle between the three speakers,
one with a 30° angle between the speakers, one with a 60° angle between the speakers.
8.5 GRoUND LAYING
The KK-STAGE accessory is used to ground laying KK52/KK102 speakers.
KK-STAGE allows users to safely lay the speakers on the ground with three different angles: 0°, 30° and
45°. Ideal applications are monitoring and front-fill.

KK52-KK102 Ver. 2.1
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8.6 STANDING oN A KMT SUBwoofER
Up to two meters of KK52/KK102 can be mounted on a KMT subwoofer by using the K-FOOT2 and
K-JOINT2 accessories.
Acoustically speaking, two KK102s perfectly match with a KMT18 subwoofer. An excellent example of
the use of this combination is the K-array portable system KR202.
KMT18 + 2 x KK102

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9. SERVICE
To obtain service:
1) Contact the official K-array distributor in your country. Your local distributor will direct you to the
appropriate service center.
2) If you are calling for service, please have the serial number(s) of the unit(s) available for reference.
Ask for Customer Service and be prepared to describe the problem clearly and completely.
3) If the problem cannot be resolved over the phone, you may be required to send the unit in for
service. In this instance, you will be provided with an RA (Return Authorization) number which should
be included on all shipping documents and correspondence regarding the repair. Shipping charges are
the responsibility of the purchaser.
Any attempt to modify or replace components of the device will invalidate your warranty. Service must
be performed by an authorized K-array service center.
Cleaning:
Use only a soft, dry cloth to clean the product. Do not use any solvents, chemicals, or cleaning
solutions containing alcohol, ammonia, or abrasives. Do not use any sprays near the product or
allow liquids to spill into any openings.

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10. TEChNICAL SPECIfICATIoNS
Notes for data
1. With dedicated preset;
2. Measured @4 mt then scaled @1 mt;
3. Measured with musical signal
New materials and design are introduced into existing products without previous notice.
Present systems may differ in some respects from those presented in this catalogue.
ACOUSTICS
Power handling 200 W
Max power 400 W
Frequency range 150 Hz – 20 kHz (- 3dB) (1)
Impedance 16 Ω/ 64 Ω(selectable)
SPL 1W/1mt 95 dB (2)
Maximum SPL 118 dB (cont.) – 124 dB (peak) (3)
COVERAGE
Horizontal 90°
Vertical 10° / 60° (selectable)
CROSSOVER
Type External crossover required
Frequency High pass @ 150 Hz, 24 dB/oct
suggested minimum
TRANSDUCERS
Full range 8 x 2” Neodymium magnet cone drivers
with 0.75” voice coil
SELECTION SWITCHES
Impedance 16 Ω/ 64 Ω
Coverage Spot / Flood
POWER AUDIO INPUT/OUTPUT
Connector 2 x 4-pin Speakon
Wiring 1+ 1- (signal IN & LINK); 2+ 2- (through)
RECOMMENDED AMPLIFIERS
Type KA24, KA84, KMT
CERTIFICATION
IP 54
PHYSICAL
Dimensions 5.9 x 50.0 x 8.1 cm
(2.3” x 19.6” x 3.2”)
Weight 2.3 kg (5.1 lbs)
The contents of this manual are furnished for informational purposes only. K-array s.u.r.l. assumes no responsibility for any errors or inaccuracies that may
appear in this manual. K-array s.u.r.l. reserves the right to make modifications without prior notice.
ACOUSTICS
Power handling 400 W
Max power 800 W
Frequency range 150 Hz – 20 kHz (- 3dB) (1)
Impedance 8 Ω/ 32 Ω(selectable)
SPL 1W/1mt 98 dB (2)
Maximum SPL 124 dB (cont.) – 130 dB (peak) (3)
COVERAGE
Horizontal 110°
Vertical 7° / 35° (selectable)
CROSSOVER
Type External crossover required
Frequency High pass @ 150 Hz, 24 dB/oct
suggested minimum
TRANSDUCERS
Full range 16 x 2” Neodymium magnet cone drivers
with 0.75” voice coil
SELECTION SWITCHES
Impedance 8 Ω/ 32 Ω
Coverage Spot / Flood
POWER AUDIO INPUT/OUTPUT
Connector 2 x 4-pin Speakon
Wiring 1+ 1- (signal IN & LINK); 2+ 2- (through)
RECOMMENDED AMPLIFIERS
Type KA24, KA84, KMT
CERTIFICATION
IP 54
PHYSICAL
Dimensions 5.9 x 100.0 x 8.1 cm
(2.3” x 39.4” x 3.2”)
Weight 4.6 kg (10.2 lbs)
KK52 KK102